Porsche 928 - WORKSHOP MANUAL 1977 Workshop Manual page 148

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928 Wheels, Tires, Alignment
44
Tire pressure warning system (RDK) diagnosis
General
The system tester 9288 will be usad for PORSCHE DIAGNOSIS from Mod. 89 onwards.
PORSCHE DIAGNOSIS can be used for all systems capable of self diagnosis.
Capable of self diagnosis means: the control unit can detect. store and output system errors
- Read out tire pressure loss event memory (from control unit version R02 on (introducing during
1991 model year).
- As the number of systems capable of self diagnosis will be increasing in the forseeable future, di-
agnosis of the relevant system will be filed at the end of the respective repair group as of now.
The pages in repair group 03 continue to be applicable. Apart from the diagnosis procedure filed
there to date (flashing code diagnosis with tester 9268) this will also contain a description of how
to operate system tester 9288 (OFF-board diagnosis with plain text output).
- Tire pressure warning system diagnosis is nof possible using tester 9268 (flashing code
diagnosis).
9268
Tire pressure warning system (RDK) diagnosis
Printed in Oermsny - XX", ,990
44 - 301